Source : Webster's Revised Unabridged Dictionary (1913)

Heeltap \Heel"tap`\, n.
   1. One of the segments of leather in the heel of a shoe.

   2. A small portion of liquor left in a glass after drinking.
      ``Bumpers around and no heeltaps.'' --Sheridan.

Heeltap \Heel"tap`\, v. t. [imp. & p. p. {Heeltapped}; p. pr. &
   vb. n. {Heeltapping}.]
   To add a piece of leather to the heel of (a shoe, boot, etc.)